曾令峰

• 1:紫金矿业建设集团(厦门)有限公司

摘要(Abstract)：

为了明确某地下矿山采场爆破振动对运输大巷和地表民房等的影响程度，并对其进行控制，应用现场工业试验的方式获取实测数据资料。试验首先采用Blast-NET型爆破监测仪对爆破引起的径、切、垂向振动速度和频率进行监测，根据萨道夫斯基公式，用一元回归分析法计算得出与地质条件相关的K、α值，从而获得了现场实际爆破振动速度计算公式。随后通过持续开展振动监测验证了计算公式的可靠性，并分别对逐排起爆、分段起爆、逐孔起爆三种不同起爆网路进行优化试验。研究结果表明，若考虑保护地表民房，在逐排起爆、分段起爆、逐孔起爆条件下，爆源与保护建筑物最小安全距离分别为250 m、200 m、125 m;若考虑保护井下运输巷道，在逐排起爆、分段起爆、逐孔起爆条件下，爆源与保护建筑物最小安全距离分别为30 m、25 m、25 m。最终认为：当预测振动速度满足逐排或逐排分段起爆条件时，矿山可采用导爆管雷管起爆；若仅满足逐孔起爆网路时，则只能采用数码电子雷管或高精度导爆管起爆网路。

关键词(KeyWords)： 地下矿山;爆破振动监测;爆区建(构)筑物;微差爆破

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 曾令峰

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